M24.1
Header — not billable
Other articular cartilage disorders
Other articular cartilage disorders
M24.1 is a header (parent) code in the ICD-10-CM hierarchy. It is not billable for claim submission. Use one of the billable child codes listed below.
Billable codes in this category
Each of the codes below is billable. Choose the one that most accurately describes the patient's diagnosis.
M24.10
Other articular cartilage disorders, unspecified site
M24.19 M24.10 classifies articular cartilage disorders that fall outside other specifically defined cartilage conditions — such as chondrocalcinosis or internal derangement of the knee — when the affected joint site is not documented.
Other articular cartilage disorders, other specified site
M24.19 captures articular cartilage disorders at joints that don't have a dedicated site-specific code within the M24.1 subcategory — a true 'other specified site' catch-all for non-standard anatomical locations.
Inclusion & exclusion notes
Excludes 2 (not included here, but may be coded together if both present)
- chondrocalcinosis (M11.1-, M11.2-)
- internal derangement of knee (M23.-)
- metastatic calcification (E83.59)
- ochronosis (E70.29)